328440727 has 2 divisors, whose sum is σ = 328440728. Its totient is φ = 328440726.

The previous prime is 328440719. The next prime is 328440733. The reversal of 328440727 is 727044823.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 328440727 - 2³ = 328440719 is a prime.

It is a super-2 number, since 2×328440727² = 215746622304577058, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (328440757) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 164220363 + 164220364.

It is an arithmetic number, because the mean of its divisors is an integer number (164220364).

Almost surely, 2^328440727 is an apocalyptic number.

328440727 is a deficient number, since it is larger than the sum of its proper divisors (1).

328440727 is an equidigital number, since it uses as much as digits as its factorization.

328440727 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75264, while the sum is 37.

The square root of 328440727 is about 18122.9337304974. The cubic root of 328440727 is about 689.9521965062.

The spelling of 328440727 in words is "three hundred twenty-eight million, four hundred forty thousand, seven hundred twenty-seven".